One-way import: adds all browser bookmarks as URL items and listens for new ones. Disabling stops listening but does not remove already-imported items.
One-way import: adds all open browser tabs as URL items and listens for new page loads. Disabling stops listening but does not remove already-imported items.
One-way import: adds all browser history as URL items with full visit metadata. Updates existing items on revisit. Disabling stops listening but does not remove already-imported items.